Jack for lifting vehicles.



No. 780,530. PATENTED JAN. 24, 1905;

' E. J. RUBOTTO M & G; H. CLEMENT.

JACK FOR LIFTING VEHICLES APPLICATION FILED APR. 29, 1904;

' Witnesses.

UNITED STATES EMPHREY J. RUBOTTOM Patented January 24-, 1905.

PATENT OFFICE.

JACK FOR LIFTING VEHICLES.

SPECIFICATION forming part of Letters Patent No. 780,530, dated January24, 1905.

Application filed April 29, 1904:. Serial No. 205,631-

To all whom it may concern:

Be it known that we, EMPHREY J. RUBo'r- Tom and GEORGE H. CLEMENT,citizens of the United States, residing at Felton, county of Santa Cruz,and State of California, have invented certain new and usefulImprovements in Jacks for Lifting Vehicles; and we hereby declare thefollowing to beafull, clear, and exact description of the same,reference being had to the accompanying drawings, forming a part of thisspecification.

This invention relates to lifting-jacks for raising vehicles and tocertain improvements therein whereby they are more convenientlyoperated. 1

Our improvements consist in mounting the lifting mechanism on ,a longstem-standard.

above instead of below the axles of the vehicles to be raised, so thedevice can be operated above the wheels without going behind the same,consequently to add to the convenience of use and to avoid soilingattendants clothing, which commonly occurs when the lever and liftingmechanism is placed below the axleand behind the wheels of a vehicle,also consists in certain devices to facilitate this position and mannerof operating.

The objectof our invention is to provide a lifting-jack of a very simpleform, inexpensive, and with the operative advantages above named. Tothis end we construct such lifting-jacks as illustrated in the drawings.

Figure 1 is a side elevation of one of our improved devices placedbehind a wagon or carriage wheel in position for lifting the same. Fig.11 is a view in perspective of the same device; Fig. 111, an enlargeddetail of Fig. 11 looking from the rear. Fig. 1111 is an enlargedsection through the clamping device that engages and holds thelifting-bar.

The inconvenience of setting lifting-jacks for the wheels of a'vehicleare. wellv known. The space atthe front is occupied by a tongue orthills and doubletrees, so a lifting-jack .wheels offering an awkwardobstruction in position behind the same, the latter consisting of a stemor standard 2 that is approximately two-and-a-half times the length fromthe axles 3 to the ground 1. This standard 2 can be made of metal orwood, preferably the latter for light vehicles. On this standard 2 isplaced the sliding guides 5 and 7 to which a lifting-bar 8 is rigidlyattached at 9 and 10, so the whole can be moved freely on the standard2. V

'On the lifting-bar 8 is placed a movable clutch member 11, (shownenlarged in Fig. 1111,) that moves freely in one direction, but nips andholds the bar 8 when moved in the opposite direction. To this clutchmember 11 is attached at 12 a lifting-rod13, that extends up to and ispivotally held at 14 in the end of a; lever 15, the latter mounted on apivot 17 in the upper end of the standard 2 to form a toggle-joint, asshown in Fig. 11.

The lifting-bar 8 has at the bottom a rightangular extension 6, thatpasses beneath the axle 3 to raise this and the wheel 1, as shown inFig. 1. The guides5 and 7 and the bar 8 are free to slide upward, thebar 8' moving freely through the clutch member 12, and if this bar 8andthe guides are to be lowered the .operator pulls upon the handle 18,loosening the clutch 12, so the bar 8 will descend by gravity and thencan beraised to come in contact with the axle 3 in a proper position forlifting the same. When the vehicle is to be lowered, this can be done byraising the lever 15, or the handle 18 can be raised to release the bar8.

In operating the jack is handled from the top and set behind the wheel1, as shown in Fig. 1. The guides 5 and? and the bar 8 are then raiseduntil the extension 6 comes under the axle 3, the clutch devices 11holding'the the load. In this manner it Will be seen the jack can beconveniently operated by a person standing outside the Wheel Withoutstooping and Without being soiled by contact With the Wheel 1.

Having thus explained the nature and objects of our invention and themanner of constructing and operating the same, What We claim as new, anddesire to secure by Letters Patent, is

1. In a vehicle-lifting jack, a main standard extending above thevehicle-Wheel, With lifting devices thereon disposed above the axle tobe raised, consisting of a lifting-bar arranged to slide on the mainstandard, and a rod and lever to raise the said bar, connected theretoby a releasing-clutch that slides upon and engages the lir'ting-bar Whenstrained upwardly, substantially as specified.

2. In a vehicle-lifting jack, a main supporting-standard reaching fromthe vehicle-axle to the ground or floor and above the top of the Wheelto be raised, With lifting devices attached to said standard extendingabove the vehicle-axle, consisting of a lifting-bar arranged to slide onthe main standard, a lifting extension on said bar adapted to engage theaxle of a vehicle, a lever and connecting-rod to raise said lifting-bar,and a releasable clutch that is engaged by upward strain on thecounectrng-rod attached thereto, substantially as specified.

In testimony whereof We have signed our names to this specification inthe presence of tWo subscribing Witnesses.

EMPHREY J. RUBOTTOM. GEORGE H. CLEMENT. Witnesses:

W. H. HORN, J. W. HAYns.

